:root{--bg:#080b12;--panel:#111722;--line:#3c485b;--text:#f7f9fc;--muted:#b1bdce;--lime:#bdff32;--blue:#7dafff;--danger:#ffadb7;color-scheme:dark;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP",sans-serif;font-size:16px}
h1>span{display:inline-block}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);line-height:1.65}a{color:inherit;text-underline-offset:4px}button,input,textarea{font:inherit}button,a,input,summary{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.6}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible,textarea:focus-visible{outline:3px solid var(--blue);outline-offset:4px}[hidden]{display:none!important}
.topbar{max-width:1240px;margin:auto;min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 24px;border-bottom:1px solid var(--line)}.brand{font-size:23px;font-weight:850;letter-spacing:-1px;text-decoration:none}.brand span{color:var(--lime)}.preview{font-size:13px;border:1px solid var(--line);padding:3px 10px;border-radius:6px;color:var(--muted)}main{max-width:1240px;margin:auto;padding:32px 24px 56px}.intro{margin-bottom:18px}.eyebrow{font-size:12px;font-weight:750;letter-spacing:.12em;color:var(--lime);margin:0 0 8px}h1{font-size:clamp(26px,3vw,36px);line-height:1.4;letter-spacing:-.025em;margin:0 0 12px}.intro>p:last-child{margin:0;color:var(--muted)}.privacy{font-size:14px;color:var(--lime);margin:0 0 24px}.privacy span{color:var(--muted);margin-left:12px}.workspace{display:grid;grid-template-columns:minmax(320px,.78fr) minmax(0,1.22fr);gap:28px;align-items:start}.input-panel{border:1px solid #9aa6b8;background:#f6f8fb;color:#172131;border-radius:16px;padding:24px;color-scheme:light}.panel-title{display:flex;align-items:baseline;justify-content:space-between;gap:12px}.panel-title h2{font-size:21px;margin:0}.panel-title>span{font-size:13px;color:#4d5d70}.example-note{font-size:14px;color:#46576c;border-left:3px solid #536a88;padding-left:10px;line-height:1.6;margin:14px 0 20px}fieldset{border:0;padding:0;margin:0 0 22px;min-width:0}legend{font-weight:750;padding:0;margin-bottom:13px;font-size:16px}legend b{font-variant-numeric:tabular-nums;font-size:13px;color:#526179;margin-right:9px}.fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px 14px}.field label{display:block;font-weight:700;font-size:14px;margin-bottom:6px}.number{display:flex;align-items:center;border:1px solid #8c9aaf;border-radius:8px;background:#fff;min-width:0}.number input{background:transparent;color:#172131;min-width:0;width:100%;border:0;padding:10px 0 10px 10px;font-size:20px;font-weight:650;font-variant-numeric:tabular-nums;border-radius:8px}.number>span{font-size:13px;padding:0 9px 0 4px;white-space:nowrap;color:#4d5d70}.field small{display:block;font-size:12px;line-height:1.6;color:#4d5d70;margin-top:5px}.field-error{margin:4px 0 0;color:#a0182e;font-size:13px}.field-error:empty{display:none}.number:has([aria-invalid="true"]){border:2px solid #ba2642}.hint{font-size:13px;line-height:1.7;color:var(--muted);margin:12px 0 0}.input-panel .hint{color:#4d5d70}.button{display:flex;justify-content:center;align-items:center;gap:12px;width:100%;min-height:48px;padding:12px 16px;border:1px solid var(--line);border-radius:8px;text-decoration:none;font-weight:750;font-size:15px;line-height:1.6}.primary{color:#111908;background:var(--lime);border-color:#659b0a}.primary:hover{background:#cdff69}.text-button{color:#3c4e64;background:none;border:0;min-height:44px;margin-top:4px;font-size:14px}.secondary{background:var(--panel);color:var(--text);margin-top:18px}.secondary:hover{border-color:var(--lime)}#form-status{font-size:14px;color:#912039;margin:0 0 10px}#form-status:empty{display:none}.results{min-width:0;scroll-margin-top:20px}.result-heading h2{font-size:24px;line-height:1.4;margin:0 0 8px}.result-heading>p:last-child{font-size:14px;color:var(--muted);margin:0 0 20px}.result-state{font-size:13px;color:var(--muted);margin:0 0 12px}.monthly{display:grid;grid-template-columns:1fr auto;align-items:center;gap:2px 10px;border-bottom:1px solid var(--line);padding-bottom:16px;margin-bottom:18px}.monthly>span{font-size:14px}.monthly strong{font-size:28px;font-variant-numeric:tabular-nums;overflow-wrap:anywhere}.monthly small{grid-column:1/-1;font-size:12px;color:var(--muted)}.comparison{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.scenario{border:1px solid var(--line);border-radius:12px;background:var(--panel);padding:18px}.scenario.prepared{border-color:#526f9b}.scenario h3{display:flex;gap:8px;align-items:center;font-size:14px;margin:0 0 18px;line-height:1.5}.dot{display:inline-block;width:8px;height:8px;border-radius:50%;flex-shrink:0}.now{background:var(--lime)}.later{background:var(--blue)}.metric-label{font-size:12px;color:var(--muted);margin:0}.amount{font-size:clamp(22px,2.3vw,30px);font-weight:750;letter-spacing:-.03em;margin:3px 0 16px;font-variant-numeric:tabular-nums;overflow-wrap:anywhere}.scenario dl{margin:0;font-size:13px}.scenario dt{color:var(--muted);margin-top:10px}.scenario dd{margin:2px 0 0;font-weight:650;overflow-wrap:anywhere}.negative{color:var(--danger)}.notice{padding:12px 15px;background:#241c12;border:1px solid #8c6840;border-radius:8px;color:#ffdfaf;font-size:14px;margin:18px 0}.notice:empty{display:none}.empty{padding:32px 24px;border:1px dashed var(--line);border-radius:12px;color:var(--muted)}.chart-box{margin:24px 0 18px}.chart-box figcaption{display:flex;justify-content:space-between;gap:10px;font-size:16px;font-weight:650}.chart-box figcaption span{font-size:12px;color:var(--muted);font-weight:400}#chart{width:100%;margin-top:8px}#chart svg{display:block;width:100%;height:220px;overflow:visible}.chart-grid{stroke:#374253;stroke-width:1}.chart-zero{stroke:#e7b871;stroke-width:1;stroke-dasharray:3 4}.chart-label{fill:#b1bdce;font-size:12px}.chart-path-now{stroke:var(--lime);stroke-width:3;fill:none}.chart-path-prepared{stroke:var(--blue);stroke-width:3;stroke-dasharray:7 5;fill:none}.legend{display:flex;gap:16px;flex-wrap:wrap;font-size:13px;margin:5px 0}.legend>span{display:flex;align-items:center;gap:6px}.line{width:20px;display:inline-block;border-top:3px solid var(--lime)}.later-line{border-color:var(--blue);border-top-style:dashed}.details{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:12px 0;font-size:14px}.details summary{cursor:pointer;min-height:32px;padding:4px 0;font-weight:650}.details ul{padding-left:22px;color:var(--muted);line-height:1.8}.details li+li{margin-top:8px}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse;font-variant-numeric:tabular-nums;font-size:13px;table-layout:fixed}caption{text-align:left;color:var(--muted);padding:12px 0}th,td{text-align:right;border-bottom:1px solid var(--line);padding:8px 5px;overflow-wrap:anywhere}th:first-child,td:first-child{text-align:left;width:22%}.assumptions{margin-top:24px}#copy-status{font-size:14px;color:var(--lime);min-height:1.5em;margin:7px 0}#manual-copy{width:100%;min-height:220px;background:var(--panel);color:var(--text);border:1px solid var(--line);padding:12px}.consult{border:1px solid var(--line);border-radius:12px;padding:22px;margin-top:24px}.consult h3{font-size:20px;margin:0 0 8px}.consult p{font-size:14px;color:var(--muted);margin:0 0 16px}.consult small{display:block;font-size:12px;color:var(--muted);line-height:1.7;margin-top:12px}.development-link{display:block;font-size:13px;margin-top:18px;color:var(--muted)}footer{max-width:1192px;margin:0 auto;padding:24px 0 36px;border-top:1px solid var(--line);display:flex;gap:16px;justify-content:space-between;color:var(--muted);font-size:12px}footer nav{display:flex;gap:12px;flex-wrap:wrap}
@media(max-width:1000px){.workspace{gap:20px}.input-panel{padding:20px}.comparison{gap:8px}.scenario{padding:14px}.monthly strong{font-size:24px}}
@media(max-width:800px){.workspace{grid-template-columns:1fr}.results{margin-top:8px}.intro h1{font-size:28px}.privacy span{display:block;margin:3px 0 0}.input-panel{padding:22px}.amount{font-size:28px}.chart-box{margin-top:22px}footer{margin:0 24px;display:block}footer nav{margin-top:12px}.topbar{min-height:64px}}
@media(max-width:420px){.topbar{padding:14px 16px;flex-wrap:wrap;gap:8px}.brand{font-size:21px}.preview{font-size:12px}main{padding:24px 16px 36px}.intro h1{font-size:25px}.intro p{font-size:15px}.desktop-break{display:none}.input-panel{padding:18px 14px}.fields{gap:16px 10px}.field label{font-size:13px}.number input{font-size:18px;padding-left:8px}.number>span{padding-right:6px}.comparison{grid-template-columns:1fr}.scenario{padding:16px}.scenario h3{margin-bottom:12px}.scenario dl{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:8px}.scenario dt{margin:0}.scenario dd{margin:0}.amount{font-size:28px;margin-bottom:12px}.monthly{grid-template-columns:1fr}.monthly strong{font-size:28px}.panel-title{flex-wrap:wrap;gap:2px}.consult{padding:18px}.consult .button{font-size:14px}.result-heading h2{font-size:23px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}

.tool-return{max-width:1200px;margin:0 auto;padding:4px 24px;font-size:14px}.tool-return a{display:inline-flex;align-items:center;min-height:44px;color:#b1bdce;text-decoration:underline;text-underline-offset:4px}